GB918750A - Improvements in or relating to rotor mounting devices for rotating machines - Google Patents

Improvements in or relating to rotor mounting devices for rotating machines

Info

Publication number
GB918750A
GB918750A GB27961/61A GB2796161A GB918750A GB 918750 A GB918750 A GB 918750A GB 27961/61 A GB27961/61 A GB 27961/61A GB 2796161 A GB2796161 A GB 2796161A GB 918750 A GB918750 A GB 918750A
Authority
GB
United Kingdom
Prior art keywords
rotor
magnetic
circuit
centring
rims
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27961/61A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Constructions Mecaniques SA
Compagnie de Construction Mecanique Sulzer
Original Assignee
Constructions Mecaniques SA
Compagnie de Construction Mecanique Sulzer
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Constructions Mecaniques SA, Compagnie de Construction Mecanique Sulzer filed Critical Constructions Mecaniques SA
Publication of GB918750A publication Critical patent/GB918750A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/046—Bearings
    • F04D29/048—Bearings magnetic; electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/027—Details of the magnetic circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0666—Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0444—Details of devices to control the actuation of the electromagnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/06—Dynamo-electric clutches; Dynamo-electric brakes of the synchronous type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Synchronous Machinery (AREA)

Abstract

918,750. Bearings. COMPAGNIE DE CONSTRUCTION MECANIQUE PROCEDES SULZER. Aug. 1, 1961 [Aug. 3, 1960], No. 27961/61. Class 12 (1). [Also in Group XXXV] A device for magnetically centring and driving a rotor 3 of a rotating machine comprises a centring magnetic induction circuit coaxial with and adjacent to said rotor; means for producing a magnetic flux in the magnetic circuit of said centring inductor, which is provided, on the side adjacent the rotor, with polepieces having concentric rings or rims. The rotor has, on the side facing the magnetic circuit of the centring inductor, a magnetic circuit comprising inner and outer concentric rims which face the corresponding rims of the centring inductor. The rims have sharp-edged concentric ribs so that magnetic flux produced in the centring magnetic induction circuit closes through the magnetic circuit of the rotor and causes the centred rotor to be maintained on the axis of the centring magnetic induction circuit. In an embodiment, a magnetic clutch, Fig. 1, has a driving-shaft 1 with an integral rotor 2 and has a floating driven rotor 3 integral with a compressor wheel 4. The shaft 1/rotor 2 are enclosed in a casing 6 and the rotor 3/wheel 4 are in a casing 5. Thus, the driven rotor may be rotated in any ambient medium while being insulated from the other medium containing the driver rotor. The shaft 1 is supported by plain journal bearings 9, 10 and a thrust bearing 8 and carries an annular magnetic induction circuit 12 wherein a stationary field winding 13 is located to produce a magnetic flux which transmits the torque between the rotor 2 and the rotor 3. The rotor 2 has teeth 14 in an external rim and teeth 15 in an internal rim, the teeth being separated by an annular member 16 of non-magnetic material. The rotor 3 has a first annular magnetic circuit 17 carrying an external toothed rim 18 and an internal toothed rim 19. Teeth 14, 15 of the rotor face rims 18, 19 of the rotor 3 respectively, a partition 7 of the casing 6 being therebetween. The rotor 3 carries a second annular magnetic circuit 21 which co-operates with a centring magnetic induction circuit 22 carried by a portion 23 of the machine. The circuit 22 comprises rings 24, 25 of magnetic material interconnected by an annular crosspiece 26 of non-magnetic material, an annular field winding 27 being located between the rings 24, 25. The rings 24, 25 have external and internal pole rims 28, 29 which have circular ribs with sharp edges. The second magnetic circuit 21 of the rotor 3 has external and internal rims 31, 32 with sharp-edge ribs. The rotor 3 is centred by energizing the field winding 27 to generate a magnetic flux which closes through the rings 24, 25, the second magnetic circuit 21 of rotor 3 and the portion 23 of the machine. The flux is concentrated in the ribs of rims 28- 32 to accurately centre the rotor 3 relative to the axis " X "-" X " so that the overall reluctance of the magnetic circuit is a minimum in this position. The second magnetic circuit 21 of the rotor 3 has a peripheral skirt 33 which engages an annular bearing surface 34 of a housing 35. The surface 34 may be of conical or spherical shape and is subjected to pressure by the rotor 3, the pressure being caused by the magnetic fluxes. The pressure is adjusted by an auxiliary magnetic induction circuit 36 having an annular shield 37, the inside of which contains a field winding 38. The rotor 3 has a ring 39 of magnetic metal through which the flux generated by the auxiliary magnetic induction circuit 36 closes, so that the ring 39 is subjected to an axial attraction force in the direction of the induction circuit 36. The axial attraction force is adjustable by varying the excitation of the field winding 38 so as to partly compensate for the pressure of the rotor 3 on the surface 34. In an alternative embodiment, not shown, the magnetic flux produced by the centring magnetic induction circuit serves also to transmit torque between the driving rotor and the floating driven rotor.
GB27961/61A 1960-08-03 1961-08-01 Improvements in or relating to rotor mounting devices for rotating machines Expired GB918750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR834858A FR1271654A (en) 1960-08-03 1960-08-03 Device for mounting the rotor of a rotating machine

Publications (1)

Publication Number Publication Date
GB918750A true GB918750A (en) 1963-02-20

Family

ID=8736806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27961/61A Expired GB918750A (en) 1960-08-03 1961-08-01 Improvements in or relating to rotor mounting devices for rotating machines

Country Status (5)

Country Link
BE (1) BE606546A (en)
CH (1) CH372880A (en)
FR (1) FR1271654A (en)
GB (1) GB918750A (en)
LU (1) LU40427A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286347B (en) * 1963-10-09 1969-01-02 Siemens Ag Magnetic relief device
FR2845736A1 (en) * 2002-10-15 2004-04-16 Jeumont Sa Motorized pump unit circulating corrosive fluid in chemical or petrochemical industry, includes compensating magnets and surfaces made of corrosion-resistant material
EP3499694A1 (en) * 2017-12-13 2019-06-19 ArianeGroup GmbH Permanent magnetic brake and method for producing a locking or securing torque with a permament magnetic brake

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1219117B (en) * 1962-08-22 1966-06-16 Commissariat Energie Atomique Storage of an electric motor for high speeds with a vertical rotor shaft
US4043614A (en) * 1975-10-28 1977-08-23 Cambridge Thermionic Corporation Magnetic suspension apparatus
DE2631271C2 (en) * 1976-07-12 1982-12-23 Eksperimental'nyj naučno-issledovatel'skij institut metallorežuščich stankov, Moskva Electromagnetic friction clutch
FR2574880A1 (en) * 1984-12-14 1986-06-20 Jeumont Schneider System forming an axial magnetic thrust bearing for a rotating machine
FR2630354B1 (en) * 1988-04-20 1990-08-31 Mecanique Magnetique Sa ACTIVE VIBRATOR WITH MAGNETIC SUSPENSION SERVED ON THREE AXES
DE4342583A1 (en) * 1993-12-14 1995-06-22 Skf Textilmasch Komponenten Shaftless rotor for open end spinner
AU4640096A (en) * 1994-12-12 1996-07-03 Jorge De Armas Electromagnetic-coupled/levitated apparatus and method for rotating equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286347B (en) * 1963-10-09 1969-01-02 Siemens Ag Magnetic relief device
FR2845736A1 (en) * 2002-10-15 2004-04-16 Jeumont Sa Motorized pump unit circulating corrosive fluid in chemical or petrochemical industry, includes compensating magnets and surfaces made of corrosion-resistant material
WO2004036051A1 (en) * 2002-10-15 2004-04-29 Jeumont Sa Pump unit for circulating a corrosive fluid
EP3499694A1 (en) * 2017-12-13 2019-06-19 ArianeGroup GmbH Permanent magnetic brake and method for producing a locking or securing torque with a permament magnetic brake

Also Published As

Publication number Publication date
FR1271654A (en) 1961-09-15
BE606546A (en) 1961-11-16
LU40427A1 (en) 1961-09-22
CH372880A (en) 1963-10-31

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